Quantum nonreciprocity based on electromagnetically induced transparency in chiral quantum-optical systems

Yu You, Yiqi Hu, Gongwei Lin, Yihong Qi, Yueping Niu, and Shangqing Gong

Phys. Rev. A 103, 063706 – Published 10 June 2021

Abstract

On-chip single-photon nonreciprocal devices with high isolation and low insertion loss become a key element in quantum information processing. Based on electromagnetically induced transparency in chiral quantum systems, a single-photon isolator and a single-photon circulator are obtained without requiring unbalanced coupling. These devices have high isolation and low insertion loss. Moreover, their bandwidths are significantly broadened with the assistance of electromagnetically induced transparency.

Received 23 December 2020
Accepted 20 May 2021

DOI:https://doi.org/10.1103/PhysRevA.103.063706

Physics Subject Headings (PhySH)

Quantum description of light-matter interaction Quantum optics

Atomic, Molecular & Optical

Authors & Affiliations

Yu You ^1,2, Yiqi Hu ^1,2, Gongwei Lin^1,*, Yihong Qi^1,†, Yueping Niu^1,3,‡, and Shangqing Gong^1,3

¹Department of Physics, East China University of Science and Technology, Shanghai 200237, China
²School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
³Shanghai Engineering Research Center of Hierarchical Nanomaterials, Shanghai 200237, China

^*gwlin@ecust.edu.cn
^†qiyihong@ecust.edu.cn
^‡niuyp@ecust.edu.cn

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Issue

Vol. 103, Iss. 6 — June 2021

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covering atomic, molecular, and optical physics and quantum information